Howard b



(No Model.)

H.- B. FROST.

SASH PASTBNER.

No. 270,542. Patented Jan.9, 1883.

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UNITE STATES PATENT Fries.

HOWARD B. FROST, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO OLIVER S. JUDDAND ACHARLES BLAKESLEE, OF SAME PLACE.

SASHFASTENER.

SPECIFICATION formingpart of Letters Patent No. 270,542, dated January9, 1883.

Application filed September 27,1882. (No model.)

To all whom it may concern:

Be it known that I, HOWARD B. FROST, of New Britain, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Sash-Fasteners, of which the following is aspecilcation.

My invention relates to improvements in sash-fasteners, in which theparts are constructed and assembled by forming a thin por- 1o tion nearthe middle ot' the bolt, so shaping the large end ofthe bolt and itscase that it cannot rotate therein, providing the stem or handle end ofthe bolt with a Aside projection and theinner end of the case ,with aside notch, then placing the spring upon the bolt, passing it lengthwiseinto the case far enough to carry the side projection through the sidenotch at the end of the case, and then twisting the thin portion of thebolt to carry` the 2o side projection out of alignment with the notch,and the objects ot' my invention are to enable the parts to be formedand assembled in an inexpensive manner. Iattain these objects by theconstruction illustrated in the accompanying drawings, in which- Figurel is a side elevation of my sash-fastener. Figspfv and 3 are end viewsof the different ends of the same. Fig. 4 is an elevation ofthe boltrepresented in the form it has 3o when the parts are ready to beassembled,

and Fig. 5 is an elevation of the same represented in the term it hasafter the parts have been assembled for use.

A designates the case, the general form of which may be ot' any ordinaryconstruction,

ither with or without the peripheral screwthread. The case is madehollow to admit the longitudinally-moving bolt B and its spring, which,after the parts are assembled, work in the ordinary manner. The largeend a ofthe bolt B is iiatted upon two sides, and the opening in thatend ofthe case is otl a corresponding form, as shown in Fig. 3, so thatthat end ot' the bolt cannot rotate within the case. Any

other irregular form for the bolt and its bearing in this end ot' thecase which will prevent the bolt from rotating therein is considered theequivalent ofthe particular form shown.

The bolt B is made of wrought or cast malleable iron or other malleablematerial, and it is ilatted or thinned, as shown in Fig. 4, at a pointwhich is hidden from View by the case when the parts are in the positionillustrated in Fig. 1. The rest of the stem or handle end of the bolt ismade round, from which round stem the side projection, b, extends. Theopening in the small or inner end of the case is round, with a notch, c,upon one side large enough to let the projection b pass through it. Thisnotch and projection are so formed with 6o reference to' each other andthe at sides ot' the bolt at the large end that when the bolt is in theform shown in Fig. 4 and its large end is properly entered into that endof the ease the projection and notch will be in alignment and the boltcan be passed longitudinally into the case.

In order to assemble the parts,the ordinary spiral spring is placed uponthe bolt, and both together are passed into the case until the 7oprojection b passes through the notch c. The inner end ofthe bolt isthen twisted preferably a quarter-turn with reference to its large end,the thinned portion shown in Figs-4 and 5 yielding to admit of suchtwisting, and 75 thereby the projection b is carried out of alignmentwith the notch c, and comes in contact with the solid portion at the endofthe case A, and prevents the spring from forcing the bolt endwisebeyond a certain point. The 8o flatted sides of the bolt and opening inthe case at the large end prevent the bolt from rotating' so as to everagain bring the projec-l tion into alignment with the notch withoutbending the thinned portion ot' the bolt.. 85

I have herein specitied only one projection b and notch 0,' but it isevident that the same might be duplicated,if desired. It is also evidentthat this improvement is applicable to that class of sash-fasteners inwhich the longn gitudinally-moving bolt is provided with a thumb-pad forpushing instead of pulling the bolt against the force of its spring.

I claim as my invention- That improvement in sash-fasteners whichconsists of the case and bolt, having the outer end ot' the bolt securedagainst rotation Within the case, the projection and notch at theinnerend ofthe case and bolt, and the thinned and twisted portion between theprojection roo and large end of the bolt, substantially as described,and for the purpose specified.

HOWARD B. FROST. Witnesses:

JAMES SHEPARD, J oHN- EDWARDS, Jr.

